(4,3),(-4,7)
find the equation of the two slopes in y=mx+b form

y=-1/2x + 5

Step-by-step explanation:

We first find the difference between the points. 4 - -4 = 8, and 3 - 7 = -4.

8/-4 = -1/2, so we know that is our slope(m).

Then to find our y-intercept(b), we need to know what y is at x=0. We can easily find this by picking one of the points we already have, I'll just do (4,3), and multiply our slope by the x number of the point.

-1/2 * 4 = -2. But we need it to be 3 to match up with our point. 3- -2 = 5, which is our y-intercept.

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: